I contemplate deleting it

You might try. I think all you'll be able to do is leave a little spot where each of your own posts was unless there are any that have not been responded to. Those you you can disappear completely, as though they never existed. All it would do would be cause more confusion, since all the rest of the posts would still be here, with some of the context missing. To disappear the entire thread would take the combined and carefully orchestrated effort of everyone who has contributed, not to mention an excursion into the dread threaded mode to determine who had to delete what when. And even then, someone could do the same resurrection to any other thread.

Don't anyone feel bad about being fooled; it's happened to most everyone of us at one time or another.